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Polylactic acid composition

A technology of polylactic acid and composition, which is applied in the field of polylactic acid composition, can solve problems such as unstudied hydrolysis, and achieve excellent pulverization, low cost, and the effect of promoting hydrolysis

Active Publication Date: 2017-10-24
TOYO SEIKAN GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its hydrolyzability has not been studied at all

Method used

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  • Polylactic acid composition
  • Polylactic acid composition
  • Polylactic acid composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Sample pellets were prepared according to the above method by using 100 parts by weight of polylactic acid (Revode 101) and 3 parts by weight of synthetic mica as a blending agent.

[0121] The crystallinity thereof was calculated for the pellet, and its rate of passing through a sieve after having been freeze-pulverized and its hydrolyzability were evaluated. The results are shown in Table 1.

Embodiment 2

[0123] Sample pellets were prepared in exactly the same manner as in Example 1 except that 3 parts by weight of the swelling-treated montmorillonite was used as a blending agent, and evaluated. The results are shown in Table 1. Room temperature crushing is also tested. figure 1 is an SEM photograph of the obtained powder.

Embodiment 3

[0125] Sample pellets were prepared in exactly the same manner as in Example 1, except that 3 parts by weight of swelling-treated montmorillonite and 5 parts by weight of PEOx were used as blending agents, and evaluated. The results are shown in Table 1.

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Abstract

The invention relates to a polylactic acid composition. The polylactic acid composition according to the present invention has such a dispersed structure that a low-crystalline or amorphous polylactic acid having a crystallinity degree of 40% or less serves as a matrix and an organo-modified polysaccharide or a swollen or expanded layered silicate salt is dispersed as a grinding accelerator in the matrix. The polylactic acid composition has excellent hydrolyzability and mechanical grindability.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of February 17, 2015, an application number of 201580013514.3, and an invention title of "polylactic acid composition". technical field [0002] The present invention relates to a polylactic acid composition obtained by blending polylactic acid with a pulverization accelerator. Background technique [0003] Polylactic acid is known as a resin having excellent biodegradability. From the viewpoint of improving the environment, research has now been conducted to attempt to use polylactic acid in place of various plastic materials used in various application fields. Polylactic acid is now practical in some application fields. [0004] Furthermore, recently, the use of polylactic acid has been proposed as a dispersion liquid for excavation for excavating underground resources (see Patent Document 1). [0005] For example, in order to extract underground resources, a pit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L1/02C08L67/02C08L5/00C08K9/04C08K9/00C08K7/00C08K3/34C08K5/098
CPCC08K3/34C08K3/346C08K5/098C08K7/00C08K9/00C08K9/04C08L67/04C08K2201/005C08K2201/003C08L67/02C08L1/02C08L5/00C08L3/02C08L1/00C09K8/62C08K2201/018C08L2201/06C09K8/035
Inventor 吉川成志山田俊树片山传喜
Owner TOYO SEIKAN GRP HLDG LTD